Photo 1 of Universal Bass Control Knob, 16.4ft Extension Copper Core Cable with 4-Pin Subwoofer Volume Control, Easy Install,Compatible with Most Car Amplifier

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Photo 1 of Universal Bass Control Knob, 16.4ft Extension Copper Core Cable with 4-Pin Subwoofer Volume Control, Easy Install,Compatible with Most Car AmplifierPhoto 2 of Universal Bass Control Knob, 16.4ft Extension Copper Core Cable with 4-Pin Subwoofer Volume Control, Easy Install,Compatible with Most Car Amplifier